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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-12-17 15:31:23 -0800
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2011-07-18 15:43:27 -0700
commit5f94fb5b8edf29bba06e2cd05f9d3a80a5dfb9bc (patch)
tree180fb7320f840a51ec64d349bbeeaaba0cae8a7c /arch/x86/xen/mmu.c
parentc2ba050d2e5638774571ea0ad0375a1c17c7b04e (diff)
xen/trace: add xen_pgd_(un)pin tracepoints
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/xen/mmu.c')
-rw-r--r--arch/x86/xen/mmu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index f2160997287e..5dfa90a7ad18 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -885,6 +885,8 @@ static int xen_pin_page(struct mm_struct *mm, struct page *page,
read-only, and can be pinned. */
static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
{
+ trace_xen_mmu_pgd_pin(mm, pgd);
+
xen_mc_batch();
if (__xen_pgd_walk(mm, pgd, xen_pin_page, USER_LIMIT)) {
@@ -1010,6 +1012,8 @@ static int xen_unpin_page(struct mm_struct *mm, struct page *page,
/* Release a pagetables pages back as normal RW */
static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd)
{
+ trace_xen_mmu_pgd_unpin(mm, pgd);
+
xen_mc_batch();
xen_do_pin(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd)));